Test
Threads by month
- ----- 2024 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2023 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2022 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2021 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2020 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2019 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2018 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2017 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2016 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2015 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2014 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2013 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2012 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2011 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2010 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2009 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2008 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2007 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2006 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2005 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2004 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2003 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2002 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2001 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2000 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 1999 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 1998 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 1997 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 1996 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 1995 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 1994 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 1993 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 1992 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
March 2012
- 371 participants
- 169 discussions
Cisco Security Advisory: Cisco IOS Software Network Address Translation Vulnerability
by Cisco Systems Product Security Incident Response Team 28 Mar '12
by Cisco Systems Product Security Incident Response Team 28 Mar '12
28 Mar '12
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Cisco Security Advisory: Cisco IOS Software Network Address Translation
Vulnerability
Advisory ID: cisco-sa-20120328-nat
Revision 1.0
For Public Release 2012 March 28 16:00 UTC (GMT)
+--------------------------------------------------------------------
Summary
=======
The Cisco IOS Software Network Address Translation (NAT) feature
contains a denial of service (DoS) vulnerability in the translation of
Session Initiation Protocol (SIP) packets.
The vulnerability is caused when packets in transit on the vulnerable
device require translation on the SIP payload.
Cisco has released free software updates that address this
vulnerability. A workaround that mitigates the vulnerability is
available.
This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-…
Note: The March 28, 2012, Cisco IOS Software Security Advisory bundled
publication includes nine Cisco Security Advisories. Each advisory
lists the Cisco IOS Software releases that correct the vulnerability
or vulnerabilities detailed in the advisory as well as the Cisco IOS
Software releases that correct all vulnerabilities in the March 2012
bundled publication.
Individual publication links are in "Cisco Event Response: Semi-Annual
Cisco IOS Software Security Advisory Bundled Publication" at the
following link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar12.html
Affected Products
=================
Vulnerable Products
+------------------
Cisco devices that are running Cisco IOS Software are vulnerable when
they are configured for NAT and contain support for NAT for Session
Initiation Protocol.
There are two methods to determine if a device is configured for
NAT:
* Determine if NAT is active on a running device.
* Determine if NAT commands are included in the device
configuration.
Determine if NAT is Active on a Running Device
+---------------------------------------------
The preferred method to verify whether NAT is enabled on a Cisco IOS
device is to log in to the device and issue the "show ip nat statistics"
command. If NAT is active, the sections "Outside interfaces" and "Inside
interfaces" will each include at least one interface. The following
example shows a device on which the NAT feature is active:
Router#show ip nat statistics
Total translations: 2 (0 static, 2 dynamic; 0 extended)
Outside interfaces: Serial0
Inside interfaces: Ethernet1
Hits: 135 Misses: 5
Expired translations: 2
Dynamic mappings:
-- Inside Source
access-list 1 pool mypool refcount 2
pool mypool: netmask 255.255.255.0
start 192.168.10.1 end 192.168.10.254
type generic, total addresses 14, allocated 2 (14%), misses 0
Depending on the Cisco IOS Software release, the interface lists can be
in the lines following the "Outside interfaces" and "Inside interfaces".
In releases that support the "section" filter on "show" commands, the
administrator can determine whether NAT is active by using the "show
ip nat statistics | section interfaces" command, as illustrated in the
following example:
Router> show ip nat statistics | section interfaces
Outside interfaces:
GigabitEthernet0/0
Inside interfaces:
GigabitEthernet0/1
Router>
Determine if NAT Commands are Included in the Device Configuration
+-----------------------------------------------------------------
Alternatively, to determine whether NAT has been enabled in the Cisco
IOS Software configuration, either the "ip nat inside" or "ip nat
outside" commands must be present in different interfaces, or in the
case of the NAT Virtual Interface, the "ip nat enable" interface command
will be present.
Determine the Cisco IOS Software Release
+---------------------------------------
To determine the Cisco IOS Software release that is running on a Cisco
product, administrators can log in to the device and issue the "show
version" command to display the system banner. The system banner
confirms that the device is running Cisco IOS Software by displaying
text similar to "Cisco Internetwork Operating System Software" or "Cisco
IOS Software." The image name displays in parentheses, followed by
"Version" and the Cisco IOS Software release name. Other Cisco devices
do not have the "show version" command or may provide different output.
The following example identifies a Cisco product that is running
Cisco IOS Software Release 15.0(1)M1 with an installed image name of
C3900-UNIVERSALK9-M:
Router> show version
Cisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Wed 02-Dec-09 17:17 by prod_rel_team
!--- output truncated
Additional information about Cisco IOS Software release naming
conventions is available in "White Paper: Cisco IOS and NX-OS
Software Reference Guide" at:
http://www.cisco.com/web/about/security/intelligence/ios-ref.html
Products Confirmed Not Vulnerable
+--------------------------------
No other Cisco products are currently known to be affected by this
vulnerability.
Details
=======
Cisco IOS Software NAT SIP Memory Starvation Vulnerability
NAT SIP application level gateway (ALG) translation of SIP packets could
cause a memory resource exhaustion condition that can lead to a DoS
condition, which could cause the reload of the vulnerable device.
NAT for SIP is performed on UDP port 5060 packets by default. The
port is configurable using the "ip nat service sip udp port" global
configuration command.
This vulnerability is documented in Cisco bug ID CSCti35326 and has been
assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2012-0383.
Vulnerability Scoring Details
=============================
Cisco has scored the vulnerability in this advisory based on the
Common Vulnerability Scoring System (CVSS). The CVSS scoring in this
security advisory is in accordance with CVSS version 2.0.
CVSS is a standards-based scoring method that conveys vulnerability
severity and helps organizations determine the urgency and priority
of a response.
Cisco has provided a base and temporal score. Customers can also
compute environmental scores that help determine the impact of the
vulnerability in their own networks.
Cisco has provided additional information regarding CVSS at the
following link:
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
Cisco has also provided a CVSS calculator to compute the environmental
impact for individual networks at the following link:
http://intellishield.cisco.com/security/alertmanager/cvss
* CSCti35326 ("Cisco IOS Software NAT SIP Memory Starvation Vulnerability")
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
CVSS Temporal Score - 6.4
Exploitability - Functional
Remediation Level - Official-Fix
Report Confidence - Confirmed
Impact
======
Successful exploitation of this vulnerability may cause incrementing
use of memory that will not be released until the device is reloaded.
This memory consumption could lead to a DoS condition and cause the
vulnerable device to become unresponsive or reload.
Software Versions and Fixes
===========================
Cisco IOS Software
Each row of the following Cisco IOS Software table corresponds to a
Cisco IOS Software train. If a particular train is vulnerable, the
earliest releases that contain the fix are listed in the First Fixed
Release column. The First Fixed Release for All Advisories in the
March 2012 Bundled Publication column lists the earliest possible
releases that correct all the published vulnerabilities in the Cisco
IOS Software Security Advisory bundled publication. Cisco recommends
upgrading to the latest available release, where possible.
The Cisco IOS Software Checker allows customers to search for Cisco
Security Advisories that address specific Cisco IOS Software
releases. This tool is available on the Cisco Security Intelligence
Operations (SIO) portal at:
http://tools.cisco.com/security/center/selectIOSVersion.x
+------------------------------------------------------------+
| Major | Availability of Repaired Releases |
| Release | |
|----------+-------------------------------------------------|
| Affected | |First Fixed Release for All |
|12.0-Based|First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|------------------------------------------------------------|
| There are no affected 12.0 based releases |
|------------------------------------------------------------|
| Affected | |First Fixed Release for All |
|12.2-Based|First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|------------------------------------------------------------|
| There are no affected 12.2 based releases |
|------------------------------------------------------------|
| Affected | |First Fixed Release for All |
|12.3-Based|First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|------------------------------------------------------------|
| There are no affected 12.3 based releases |
|------------------------------------------------------------|
| Affected | |First Fixed Release for All |
|12.4-Based|First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|----------+--------------------+----------------------------|
|12.4 |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
| |Releases up to and |Vulnerable; contact your |
| |including 12.4(24) |support organization per the|
|12.4GC |GC3a are not |instructions in Obtaining |
| |vulnerable. |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
|12.4JA |Not vulnerable |12.4(23c)JA4 |
| | |12.4(25e)JA |
|----------+--------------------+----------------------------|
|12.4JAX |Not vulnerable |Vulnerable; First fixed in |
| | |Release 12.4JA |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JDA |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JDC |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JDD |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JDE |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JHA |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JHB |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JHC |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JK |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4JL |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
|12.4JX |Not vulnerable |Vulnerable; First fixed in |
| | |Release 12.4JA |
|----------+--------------------+----------------------------|
|12.4JY |Not vulnerable |Vulnerable; First fixed in |
| | |Release 12.4JA |
|----------+--------------------+----------------------------|
|12.4JZ |Not vulnerable |Vulnerable; First fixed in |
| | |Release 12.4JA |
|----------+--------------------+----------------------------|
| |Only releases 12.4 |12.4(22)MD3; Available on |
|12.4MD |(24)MD5 and 12.4(24)|30-MAR-12 |
| |MD6 are vulnerable. | |
|----------+--------------------+----------------------------|
| |Releases 12.4(24) | |
| |MDA5 and prior are | |
|12.4MDA |not vulnerable; |12.4(24)MDA11 |
| |first fixed in 12.2 | |
| |(24)MDA11 | |
|----------+--------------------+----------------------------|
|12.4MDB |12.4(24)MDB4 |12.4(24)MDB5a |
|----------+--------------------+----------------------------|
|12.4MDC |Not vulnerable |Not vulnerable |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4MR |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4MRA |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
|12.4MRB |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4SW |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
| |Only releases 12.4 |12.4(15)T17 |
|12.4T |(24)T5 and 12.4(24) |12.4(24)T7 |
| |T6 are vulnerable. | |
|----------+--------------------+----------------------------|
|12.4XA |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XB |Not vulnerable |Vulnerable; First fixed in |
| | |Release 12.4T |
|----------+--------------------+----------------------------|
|12.4XC |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XD |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XE |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XF |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XG |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XJ |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XK |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4XL |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
|12.4XM |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4XN |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4XP |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
|12.4XQ |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XR |Not vulnerable |Vulnerable; First fixed in |
| | |Release 12.4T |
|----------+--------------------+----------------------------|
|12.4XT |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4XV |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
|12.4XW |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XY |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4XZ |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
|12.4YA |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.0M |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4YB |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|12.4YD |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
|12.4YE |Not vulnerable |12.4(24)YE3d |
|----------+--------------------+----------------------------|
|12.4YG |Not vulnerable |12.4(24)YG4 |
|----------+--------------------+----------------------------|
| Affected | |First Fixed Release for All |
|15.0-Based|First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|----------+--------------------+----------------------------|
| |Only releases 15.0 | |
|15.0M |(1)M4 and 15.0(1)M5 |15.0(1)M8 |
| |are vulnerable. | |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|15.0MR |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|15.0MRA |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| |Not vulnerable | |
| |Cisco IOS XE |15.0(1)S5 |
|15.0S |devices: Please see |Cisco IOS XE devices: Please|
| |Cisco IOS XE |see Cisco IOS XE Software |
| |Software |Availability |
| |Availability | |
|----------+--------------------+----------------------------|
|15.0SA |Not vulnerable |Not vulnerable |
|----------+--------------------+----------------------------|
|15.0SE |Not vulnerable |15.0(1)SE1 |
|----------+--------------------+----------------------------|
| |Not vulnerable | |
| |Cisco IOS XE |15.0(2)SG2 |
|15.0SG |devices: Please see |Cisco IOS XE devices: Please|
| |Cisco IOS XE |see Cisco IOS XE Software |
| |Software |Availability |
| |Availability | |
|----------+--------------------+----------------------------|
|15.0SY |Not vulnerable |15.0(1)SY1 |
|----------+--------------------+----------------------------|
|15.0XA |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.1T |
|----------+--------------------+----------------------------|
| |Cisco IOS XE | |
| |devices: Please see |Cisco IOS XE devices: Please|
|15.0XO |Cisco IOS-XE |see Cisco IOS-XE Software |
| |Software |Availability |
| |Availability | |
|----------+--------------------+----------------------------|
| Affected | |First Fixed Release for All |
|15.1-Based|First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|----------+--------------------+----------------------------|
|15.1EY |Not vulnerable |15.1(2)EY2 |
|----------+--------------------+----------------------------|
|15.1GC |Not vulnerable |15.1(2)GC2 |
|----------+--------------------+----------------------------|
|15.1M |Not vulnerable |15.1(4)M4; Available on |
| | |30-MAR-12 |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|15.1MR |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
| |Not vulnerable | |
| |Cisco IOS XE |15.1(3)S2 |
|15.1S |devices: Please see |Cisco IOS XE devices: Please|
| |Cisco IOS XE |see Cisco IOS XE Software |
| |Software |Availability |
| |Availability | |
|----------+--------------------+----------------------------|
| |Not vulnerable | |
| |Cisco IOS XE |Not vulnerable |
|15.1SG |devices: Please see |Cisco IOS XE devices: Please|
| |Cisco IOS XE |see Cisco IOS XE Software |
| |Software |Availability |
| |Availability | |
|----------+--------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|15.1SNG |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+--------------------+----------------------------|
|15.1SNH |Not vulnerable |Not vulnerable |
|----------+--------------------+----------------------------|
| |15.1(1)T4 | |
|15.1T |15.1(2)T5; Available|15.1(3)T3 |
| |on 27-APR-12 | |
| |15.1(3)T | |
|----------+--------------------+----------------------------|
|15.1XB |Not vulnerable |Vulnerable; First fixed in |
| | |Release 15.1T |
|----------+--------------------+----------------------------|
| Affected | |First Fixed Release for All |
|15.2-Based|First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|------------------------------------------------------------|
| There are no affected 15.2 based releases |
+------------------------------------------------------------+
Cisco IOS XE Software
+--------------------
Cisco IOS XE Software is not affected by the vulnerability that is
disclosed in this document.
Cisco IOS XR Software
+--------------------
Cisco IOS XR Software is not affected by any of the vulnerabilities
disclosed in the March 2012 Cisco IOS Software Security Advisory bundled
publication.
Workarounds
===========
NAT for SIP Resource Exhaustion Vulnerability
+--------------------------------------------
This vulnerability can be mitigated by disabling NAT SIP ALG over the
UDP transport by using the "no ip nat service sip udp port 5060" global
configuration command. This command can only be configured in Cisco IOS
images that include the NAT ALG SIP feature. Layer 3 NAT translation
will continue to be performed on SIP packets but the SIP payload will
not be translated.
Obtaining Fixed Software
========================
Cisco has released free software updates that address the
vulnerability|vulnerabilities described in this advisory. Prior to
deploying software, customers are advised to consult their
maintenance providers or check the software for feature set
compatibility and known issues that are specific to their
environments.
Customers may only install and expect support for feature
sets they have purchased. By installing, downloading,
accessing, or otherwise using such software upgrades, customers
agree to follow the terms of the Cisco software license at
http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html,
or as set forth at
http://www.cisco.com/public/sw-center/sw-usingswc.shtml.
Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for
software upgrades.
Customers with Service Contracts
+-------------------------------
Customers with contracts should obtain upgraded software through their
regular update channels. For most customers, upgrades should be obtained
through the Software Center on Cisco.com at http://www.cisco.com.
Customers Using Third-Party Support Organizations
+------------------------------------------------
Customers with Cisco products that are provided or maintained through
prior or existing agreements with third-party support organizations,
such as Cisco Partners, authorized resellers, or service providers,
should contact that organization for assistance with the appropriate
course of action.
The effectiveness of any workaround or fix depends on specific
customer situations, such as product mix, network topology, traffic
behavior, and organizational mission. Because of the variety of
affected products and releases, customers should consult their
service providers or support organizations to ensure that any applied
workaround or fix is the most appropriate in the intended network
before it is deployed.
Customers Without Service Contracts
+----------------------------------
Customers who purchase directly from Cisco but do not hold a Cisco
service contract and customers who make purchases through third-party
vendors but are unsuccessful in obtaining fixed software through
their point of sale should obtain upgrades by contacting the Cisco
Technical Assistance Center (TAC):
* +1 800 553 2447 (toll free from within North America)
* +1 408 526 7209 (toll call from anywhere in the world)
* e-mail: tac(a)cisco.com
Customers should have the product serial number available and be
prepared to provide the URL of this advisory as evidence of
entitlement to a free upgrade. Customers without service contracts
should request free upgrades through the TAC.
Refer to Cisco Worldwide Contacts at
http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html
for additional TAC contact information, including localized telephone
numbers, instructions, and e-mail addresses for support in various
languages.
Exploitation and Public Announcements
=====================================
The Cisco Product Security Incident Response Team (PSIRT) is not
aware of any public announcements or malicious use of the
vulnerability that is described in this advisory.
This vulnerability was found during troubleshooting of TAC service
requests.
Status of This Notice: Final
============================
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY
KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE
INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS
AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS
DOCUMENT AT ANY TIME.
A stand-alone copy or Paraphrase of the text of this document that
omits the distribution URL in the following section is an
uncontrolled copy, and may lack important information or contain
factual errors.
Distribution
============
This advisory is posted on Cisco Security Intelligence Operations at
the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-…
Additionally, a text version of this advisory is clear signed with
the Cisco PSIRT PGP key and circulated among the following e-mail
addresses:
* cust-security-announce(a)cisco.com
* first-bulletins(a)lists.first.org
* bugtraq(a)securityfocus.com
* vulnwatch(a)vulnwatch.org
* cisco(a)spot.colorado.edu
* cisco-nsp(a)puck.nether.net
* full-disclosure(a)lists.grok.org.uk
Future updates of this advisory, if any, will reside on Cisco.com but
may not be announced on mailing lists. Users can monitor this
advisory's URL for any updates.
Revision History
================
+------------------------------------------------------------+
| Revision 1.0 | 2012-March-28 | Initial public release. |
+------------------------------------------------------------+
Cisco Security Procedures
=========================
Complete information about reporting security vulnerabilities in Cisco
products, obtaining assistance with security incidents, and registering
to receive security information from Cisco is available on Cisco.com at
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.….
This web page includes instructions for press inquiries
regarding Cisco Security Advisories. All Cisco Security Advisories are
available at http://www.cisco.com/go/psirt.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iF4EAREIAAYFAk9xNOsACgkQQXnnBKKRMNA9ZgD8DRkOzlhN25SRskCM6aUk2u1W
i09PHPREp3klD75CsG4A/2bnHzLZ6x4vSf3PzWIJWHXAPGDiZS7+JtOyp9IBbyoI
=GnDB
-----END PGP SIGNATURE-----
1
0
Cisco Security Advisory: Cisco IOS Software RSVP Denial of Service Vulnerability
by Cisco Systems Product Security Incident Response Team 28 Mar '12
by Cisco Systems Product Security Incident Response Team 28 Mar '12
28 Mar '12
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Cisco Security Advisory: Cisco IOS Software RSVP Denial of Service Vulnerability
Advisory ID: cisco-sa-20120328-rsvp
Revision 1.0
For Public Release 2012 March 28 16:00 UTC (GMT)
+---------------------------------------------------------------------
Summary
=======
Cisco IOS Software and Cisco IOS XE Software contain a vulnerability
in the RSVP feature when used on a device configured with VPN routing
and forwarding (VRF) instances. This vulnerability could allow an
unauthenticated, remote attacker to cause an interface wedge, which
can lead to loss of connectivity, loss of routing protocol adjacency,
and other denial of service (DoS) conditions. This vulnerability
could be exploited repeatedly to cause an extended DoS condition.
A workaround is available to mitigate this vulnerability.
Cisco has released free software updates that address this
vulnerability. This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-…
Note: The March 28, 2012, Cisco IOS Software Security Advisory
bundled publication includes nine Cisco Security Advisories. Each
advisory lists the Cisco IOS Software releases that correct the
vulnerability or vulnerabilities detailed in the advisory as well as
the Cisco IOS Software releases that correct all vulnerabilities in
the March 2012 bundled publication.
Individual publication links are in "Cisco Event Response:
Semi-Annual Cisco IOS Software Security Advisory Bundled Publication"
at the following link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar12.html
Affected Products
=================
Vulnerable Products
+------------------
Only devices with specific configurations are affected. Cisco devices
that are running affected Cisco IOS Software or Cisco IOS XE Software
versions are vulnerable when they are configured with RSVP and also
have one or more VRF interfaces. A device is vulnerable if both the
following criteria are met:
* At least one VRF is configured without RSVP
* At least one other interface (physical or virtual), not in the
same VRF, is configured with RSVP
Some example scenarios are as follows:
* RSVP-Traffic Engineering (RSVP-TE) in Multiprotocol Label
Switching (MPLS) infrastructures
* Multi-VRF infrastructures
* VRF-Lite infrastructures
To determine the Cisco IOS Software release that is running on a
Cisco product, administrators can log in to the device and issue the
show version command to display the system banner. The system banner
confirms that the device is running Cisco IOS Software by displaying
text similar to "Cisco Internetwork Operating System Software" or
"Cisco IOS Software." The image name displays in parentheses,
followed by "Version" and the Cisco IOS Software release name. Other
Cisco devices do not have the show version command or may provide
different output.
The following example identifies a Cisco product that is running
Cisco IOS Software Release 15.0(1)M1 with an installed image name of
C3900-UNIVERSALK9-M:
Router> show version
Cisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Wed 02-Dec-09 17:17 by prod_rel_team
!--- output truncated
Additional information about Cisco IOS Software release naming
conventions is available in "White Paper: Cisco IOS and NX-OS
Software Reference Guide" at:
http://www.cisco.com/web/about/security/intelligence/ios-ref.html
Products Confirmed Not Vulnerable
+--------------------------------
Cisco IOS-XR software is not affected by this vulnerability.
No other Cisco products are currently known to be affected by this
vulnerability.
Details
=======
Cisco IOS Software and Cisco IOS XE Software contain a vulnerability
in the RSVP feature when used on a device configured with VPN routing
and forwarding (VRF) instances. This vulnerability could allow an
unauthenticated, remote attacker to cause an interface wedge, which
can lead to loss of connectivity, loss of routing protocol adjacency,
and other denial of service (DoS) conditions. This vulnerability
could be exploited repeatedly to cause an extended DoS condition.
A device is vulnerable if it is configured with VRF and none of the
interfaces in that VRF have RSVP enabled, but any other interface
(physical or virtual) does have RSVP enabled.
An attacker with some knowledge of the affected infrastructure
could exploit this vulnerability by sending RSVP packets to
vulnerable devices. Successful exploitation of the vulnerability
could allow an attacker to wedge the receive queue of any RSVP
ingress interface.
A workaround is available to mitigate this vulnerability.
In devices that meet the vulnerable configuration criteria, valid
RSVP packets could trigger this vulnerability. An attacker with
knowledge of the infrastructure could craft valid RSVP packets with
set conditions to exploit this vulnerability. Recovery from this
interface queue wedge requires a reload of the device.
An interface queue wedge is a class of vulnerability in which certain
packets are received and queued by a Cisco IOS router or switch but,
due to a processing error, are never removed from the queue.
For more information about queue wedges and a few detection
mechanisms that may be used to identify a blocked interface on Cisco
IOS Software (including a white paper describing how this condition
can be detected using SNMP) see:
http://blogs.cisco.com/security/comments/cisco_ios_queue_wedges_explained
This vulnerability has been documented in Cisco bug ID CSCts80643
and has been assigned the Common Vulnerabilities and Exposures (CVE)
ID CVE-2012-1311.
Vulnerability Scoring Details
=============================
Cisco has scored the vulnerability in this advisory based on the
Common Vulnerability Scoring System (CVSS). The CVSS scoring in this
security advisory is in accordance with CVSS version 2.0.
CVSS is a standards-based scoring method that conveys vulnerability
severity and helps organizations determine the urgency and priority
of a response.
Cisco has provided a base and temporal score. Customers can also
compute environmental scores that help determine the impact of the
vulnerability in their own networks.
Cisco has provided additional information regarding CVSS at the
following link:
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
Cisco has also provided a CVSS calculator to compute the
environmental impact for individual networks at the following link:
http://intellishield.cisco.com/security/alertmanager/cvss
* CSCts80643 - Cisco IOS Software RSVP Denial of Service Vulnerability
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
CVSS Temporal Score - 6.4
Exploitability - Functional
Remediation Level - Official-Fix
Report Confidence - Confirmed
Impact
======
Successful exploitation of this vulnerability will result in an
interface queue wedge, which can lead to loss of connectivity, loss
of routing protocol adjacency, and other DoS conditions. This
vulnerability could be exploited repeatedly to cause an extended DoS
condition.
Software Versions and Fixes
===========================
When considering software upgrades, customers are advised to consult
the Cisco Security Advisories and Responses archive at:
http://www.cisco.com/go/psirt and review subsequent advisories to
determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and
software configurations will continue to be supported properly by the
new release. If the information is not clear, customers are advised
to contact the Cisco Technical Assistance Center (TAC) or their
contracted maintenance providers.
Cisco IOS Software
+-----------------
Each row of the following Cisco IOS Software table corresponds to a
Cisco IOS Software train. If a particular train is vulnerable, the
earliest releases that contain the fix are listed in the First Fixed
Release column. The First Fixed Release for All Advisories in the
March 2012 Bundled Publication column lists the earliest possible
releases that correct all the published vulnerabilities in the Cisco
IOS Software Security Advisory bundled publication. Cisco recommends
upgrading to the latest available release, where possible.
The Cisco IOS Software Checker allows customers to search for Cisco
Security Advisories that address specific Cisco IOS Software
releases. This tool is available on the Cisco Security Intelligence
Operations (SIO) portal at:
http://tools.cisco.com/security/center/selectIOSVersion.x
+--------------------------------------------------------------------+
| Major | Availability of Repaired Releases |
| Release | |
|----------+---------------------------------------------------------|
| Affected | |First Fixed Release for All |
|12.0-Based| First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|--------------------------------------------------------------------|
| There are no affected 12.0 based releases |
|--------------------------------------------------------------------|
| Affected | |First Fixed Release for All |
|12.2-Based| First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|--------------------------------------------------------------------|
| There are no affected 12.2 based releases |
|--------------------------------------------------------------------|
| Affected | |First Fixed Release for All |
|12.3-Based| First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|--------------------------------------------------------------------|
| There are no affected 12.3 based releases |
|--------------------------------------------------------------------|
| Affected | |First Fixed Release for All |
|12.4-Based| First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|--------------------------------------------------------------------|
| There are no affected 12.4 based releases |
|--------------------------------------------------------------------|
| Affected | |First Fixed Release for All |
|15.0-Based| First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|----------+----------------------------+----------------------------|
|15.0M |15.0(1)M8 |15.0(1)M8 |
|----------+----------------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|15.0MR |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+----------------------------+----------------------------|
| | |Vulnerable; contact your |
| | |support organization per the|
|15.0MRA |Not vulnerable |instructions in Obtaining |
| | |Fixed Software section of |
| | |this advisory. |
|----------+----------------------------+----------------------------|
| |Not vulnerable |15.0(1)S5 |
|15.0S |Cisco IOS XE devices: Please|Cisco IOS XE devices: Please|
| |see Cisco IOS XE Software |see Cisco IOS XE Software |
| |Availability |Availability |
|----------+----------------------------+----------------------------|
|15.0SA |Not vulnerable |Not vulnerable |
|----------+----------------------------+----------------------------|
|15.0SE |Not vulnerable |15.0(1)SE1 |
|----------+----------------------------+----------------------------|
| |Not vulnerable |15.0(2)SG2 |
|15.0SG |Cisco IOS XE devices: Please|Cisco IOS XE devices: Please|
| |see Cisco IOS XE Software |see Cisco IOS XE Software |
| |Availability |Availability |
|----------+----------------------------+----------------------------|
|15.0SY |15.0(1)SY1 |15.0(1)SY1 |
|----------+----------------------------+----------------------------|
|15.0XA |Vulnerable; First fixed in |Vulnerable; First fixed in |
| |Release 15.1T |Release 15.1T |
|----------+----------------------------+----------------------------|
| |Cisco IOS XE devices: Please|Cisco IOS XE devices: Please|
|15.0XO |see Cisco IOS XE Software |see Cisco IOS XE Software |
| |Availability |Availability |
|----------+----------------------------+----------------------------|
| Affected | |First Fixed Release for All |
|15.1-Based| First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|----------+----------------------------+----------------------------|
|15.1EY |15.1(2)EY2 |15.1(2)EY2 |
|----------+----------------------------+----------------------------|
|15.1GC |15.1(2)GC2 |15.1(2)GC2 |
|----------+----------------------------+----------------------------|
|15.1M |15.1(4)M3 |15.1(4)M4; Available on |
| |15.1(4)M3a |30-MAR-12 |
|----------+----------------------------+----------------------------|
| |Vulnerable; contact your |Vulnerable; contact your |
| |support organization per the|support organization per the|
|15.1MR |instructions in Obtaining |instructions in Obtaining |
| |Fixed Software section of |Fixed Software section of |
| |this advisory. |this advisory. |
|----------+----------------------------+----------------------------|
| |15.1(3)S2 |15.1(3)S2 |
|15.1S |Cisco IOS XE devices: Please|Cisco IOS XE devices: Please|
| |see Cisco IOS XE Software |see Cisco IOS XE Software |
| |Availability |Availability |
|----------+----------------------------+----------------------------|
| |Not vulnerable |Not vulnerable |
|15.1SG |Cisco IOS XE devices: Please|Cisco IOS XE devices: Please|
| |see Cisco IOS XE Software |see Cisco IOS XE Software |
| |Availability |Availability |
|----------+----------------------------+----------------------------|
| |Vulnerable; contact your |Vulnerable; contact your |
| |support organization per the|support organization per the|
|15.1SNG |instructions in Obtaining |instructions in Obtaining |
| |Fixed Software section of |Fixed Software section of |
| |this advisory. |this advisory. |
|----------+----------------------------+----------------------------|
|15.1SNH |Not vulnerable |Not vulnerable |
|----------+----------------------------+----------------------------|
| |15.1(1)T5; Available on | |
| |18-MAY-12 | |
|15.1T |15.1(2)T5; Available on |15.1(3)T3 |
| |27-APR-12 | |
| |15.1(3)T3 | |
|----------+----------------------------+----------------------------|
|15.1XB |Vulnerable; First fixed in |Vulnerable; First fixed in |
| |Release 15.1T |Release 15.1T |
|----------+----------------------------+----------------------------|
| Affected | |First Fixed Release for All |
|15.2-Based| First Fixed Release |Advisories in the March 2012|
| Releases | |Cisco IOS Software Security |
| | |Advisory Bundled Publication|
|--------------------------------------------------------------------|
| There are no affected 15.2 based releases |
+--------------------------------------------------------------------+
Cisco IOS XE Software
+--------------------
Cisco IOS XE Software is affected by the vulnerability that is
disclosed in this document.
+---------------------------------------+
| | | First Fixed |
| | | Release for |
| | | All |
| Cisco | | Advisories |
| IOS XE | First Fixed | in the March |
| Software | Release | 2012 Cisco |
| Release | | IOS Software |
| | | Security |
| | | Advisory |
| | | Bundled |
| | | Publication |
|----------+-------------+--------------|
| | | Vulnerable; |
| 2.1.x | Not | migrate to |
| | vulnerable | 3.4.2S or |
| | | later. |
|----------+-------------+--------------|
| | | Vulnerable; |
| 2.2.x | Not | migrate to |
| | vulnerable | 3.4.2S or |
| | | later. |
|----------+-------------+--------------|
| | | Vulnerable; |
| 2.3.x | Not | migrate to |
| | vulnerable | 3.4.2S or |
| | | later. |
|----------+-------------+--------------|
| | | Vulnerable; |
| 2.4.x | Not | migrate to |
| | vulnerable | 3.4.2S or |
| | | later. |
|----------+-------------+--------------|
| | | Vulnerable; |
| 2.5.x | Not | migrate to |
| | vulnerable | 3.4.2S or |
| | | later. |
|----------+-------------+--------------|
| | | Vulnerable; |
| 2.6.x | Not | migrate to |
| | vulnerable | 3.4.2S or |
| | | later. |
|----------+-------------+--------------|
| | | Vulnerable; |
| 3.1.xS | Not | migrate to |
| | vulnerable | 3.4.2S or |
| | | later. |
|----------+-------------+--------------|
| | | Vulnerable; |
| 3.1xSG | Not | migrate to |
| | vulnerable | 3.2.2SG or |
| | | later. |
|----------+-------------+--------------|
| | Vulnerable; | Vulnerable; |
| 3.2.xS | migrate to | migrate to |
| | 3.4.2S or | 3.4.2S or |
| | later. | later. |
|----------+-------------+--------------|
| 3.2xSG | Not | 3.2.2SG |
| | vulnerable | |
|----------+-------------+--------------|
| | Vulnerable; | Vulnerable; |
| 3.3.xS | migrate to | migrate to |
| | 3.4.2S or | 3.4.2S or |
| | later. | later. |
|----------+-------------+--------------|
| 3.3.xSG | Not | Not |
| | Vulnerable | Vulnerable |
|----------+-------------+--------------|
| 3.4.xS | 3.4.2S | 3.4.2S |
|----------+-------------+--------------|
| 3.5.xS | Not | 3.5.1S |
| | vulnerable | |
|----------+-------------+--------------|
| 3.6.xS | Not | Not |
| | vulnerable | vulnerable |
+---------------------------------------+
For a mapping of Cisco IOS XE Software releases to Cisco IOS Software
releases, refer to Cisco IOS XE 2 Release Notes, Cisco IOS XE 3S
Release Notes, and Cisco IOS XE 3SG Release Notes.
Cisco IOS XR Software
+--------------------
Cisco IOS XR Software is not affected by any of the vulnerabilities
disclosed in the March 2012 Cisco IOS Software Security Advisory
Bundled Publication.
Workarounds
===========
It is possible to mitigate the vulnerability in this advisory by
applying the global configuration command ip rsvp listener vrf
vrf-name ip-address 0 0 announce, where the IP address is one that
does not exist on the device or in the routing tables.
Obtaining Fixed Software
========================
Cisco has released free software updates that address the
vulnerability described in this advisory. Prior to deploying
software, customers are advised to consult their maintenance
providers or check the software for feature set compatibility and
known issues that are specific to their environments.
Customers may only install and expect support for feature sets they
have purchased. By installing, downloading, accessing, or otherwise
using such software upgrades, customers agree to follow the terms of
the Cisco software license at:
http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html
or as set forth at http://www.cisco.com/public/sw-center/sw-usingswc.shtml
Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for
software upgrades.
Customers with Service Contracts
+-------------------------------
Customers with contracts should obtain upgraded software through
their regular update channels. For most customers, upgrades should be
obtained through the Software Center on Cisco.com at http://www.cisco.com
Customers Using Third-Party Support Organizations
+------------------------------------------------
Customers with Cisco products that are provided or maintained through
prior or existing agreements with third-party support organizations,
such as Cisco Partners, authorized resellers, or service providers,
should contact that organization for assistance with the appropriate
course of action.
The effectiveness of any workaround or fix depends on specific
customer situations, such as product mix, network topology, traffic
behavior, and organizational mission. Because of the variety of
affected products and releases, customers should consult their
service providers or support organizations to ensure that any applied
workaround or fix is the most appropriate in the intended network
before it is deployed.
Customers Without Service Contracts
+----------------------------------
Customers who purchase directly from Cisco but do not hold a Cisco
service contract and customers who make purchases through third-party
vendors but are unsuccessful in obtaining fixed software through
their point of sale should obtain upgrades by contacting the Cisco
Technical Assistance Center (TAC):
* +1 800 553 2447 (toll free from within North America)
* +1 408 526 7209 (toll call from anywhere in the world)
* e-mail: tac(a)cisco.com
Customers should have the product serial number available and be
prepared to provide the URL of this advisory as evidence of
entitlement to a free upgrade. Customers without service contracts
should request free upgrades through the TAC.
Refer to Cisco Worldwide Contacts at:
http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html
for additional TAC contact information, including localized telephone
numbers, instructions, and e-mail addresses for support in various languages.
Exploitation and Public Announcements
=====================================
The Cisco Product Security Incident Response Team (PSIRT) is not
aware of any public announcements or malicious use of the
vulnerability that is described in this advisory.
This vulnerability was discovered by Cisco during internal testing.
Status of This Notice: Final
+---------------------------
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY
KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE
INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS
AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS
DOCUMENT AT ANY TIME.
A stand-alone copy or Paraphrase of the text of this document that
omits the distribution URL in the following section is an
uncontrolled copy, and may lack important information or contain
factual errors.
Distribution
============
This advisory is posted on the Cisco Security Intelligence Operations
portal at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-…
Additionally, a text version of this advisory is clear signed with
the Cisco PSIRT PGP key and circulated among the following e-mail
addresses:
* cust-security-announce(a)cisco.com
* first-bulletins(a)lists.first.org
* bugtraq(a)securityfocus.com
* vulnwatch(a)vulnwatch.org
* cisco(a)spot.colorado.edu
* cisco-nsp(a)puck.nether.net
* full-disclosure(a)lists.grok.org.uk
Future updates of this advisory, if any, will reside on Cisco.com but
may not be announced on mailing lists. Users can monitor this
advisory's URL for any updates.
Revision History
================
+---------------------------------------+
| Revision | | Initial |
| 1.0 | 2012-March-28 | public |
| | | release |
+---------------------------------------+
Cisco Security Procedures
=========================
Complete information about reporting security vulnerabilities in
Cisco products, obtaining assistance with security incidents, and
registering to receive security information from Cisco is available
on Cisco.com at:
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.…
This web page includes instructions for press inquiries regarding Cisco
Security Advisories.
All Cisco Security Advisories are available at:
http://www.cisco.com/go/psirt
+--------------------------------------------------------------------
Copyright 2010-2012 Cisco Systems, Inc. All rights reserved.
+--------------------------------------------------------------------
-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.17 (Darwin)
Comment: GPGTools - http://gpgtools.org
iF4EAREIAAYFAk9zJcsACgkQQXnnBKKRMNDH1QD/fcj0Kk+JmG8NAI53aDniH5yk
EfxvebH1J/HGmUcEuFAA/RMKnbZ81Zx39c2hJe7iuaeRZnglJVFbsZyIPvZZrOSU
=HBKt
-----END PGP SIGNATURE-----
1
0
Cisco Security Advisory: Cisco IOS Software Multicast Source Discovery Protocol Vulnerability
by Cisco Systems Product Security Incident Response Team 28 Mar '12
by Cisco Systems Product Security Incident Response Team 28 Mar '12
28 Mar '12
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Cisco Security Advisory: Cisco IOS Software Multicast Source Discovery
Protocol Vulnerability
Advisory ID: cisco-sa-20120328-msdp
Revision 1.0
For Public Release 2012 March 28 16:00 UTC (GMT)
+--------------------------------------------------------------------
Summary
=======
A vulnerability in the Multicast Source Discovery Protocol (MSDP)
implementation of Cisco IOS Software and Cisco IOS XE Software could
allow a remote, unauthenticated attacker to cause a reload of an
affected device. Repeated attempts to exploit this vulnerability could
result in a sustained denial of service (DoS) condition.
Cisco has released free software updates that address this
vulnerability. Workarounds that mitigate this vulnerability are
available. This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-…
Note: The March 28, 2012, Cisco IOS Software Security Advisory bundled
publication includes nine Cisco Security Advisories. Each advisory
lists the Cisco IOS Software releases that correct the vulnerability
or vulnerabilities detailed in the advisory as well as the Cisco IOS
Software releases that correct all vulnerabilities in the March 2012
bundled publication.
Individual publication links are in "Cisco Event Response: Semi-Annual
Cisco IOS Software Security Advisory Bundled Publication" at the
following link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar12.html
Affected Products
=================
Vulnerable Products
+------------------
The following products are affected by this vulnerability:
+ Cisco IOS Software
+ Cisco IOS XE Software
To determine whether a Cisco IOS or Cisco IOS XE Software release is
running on a Cisco product, administrators can log in to the device
and issue the "show version" command to display the system banner.
The system banner confirms that the device is running Cisco IOS
Software by displaying text similar to "Cisco Internetwork Operating
System Software" or "Cisco IOS Software." The image name displays in
parentheses, followed by "Version" and the Cisco IOS Software release
name. Other Cisco devices do not have the "show version" command or may
provide different output.
The following example identifies a Cisco product that is running
Cisco IOS Software Release 12.4(20)T with an installed image name of
C1841-ADVENTERPRISEK9-M:
Router#show version
Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 10-Jul-08 20:25 by prod_rel_team
Additional information about Cisco IOS Software release naming
conventions is available in the White Paper: Cisco IOS and NX-OS
Software Reference Guide
Products Confirmed Not Vulnerable
+--------------------------------
Cisco IOS XR Software is not affected by this vulnerability. No other
Cisco products are currently known to be affected by this vulnerability.
Details
=======
MSDP is the protocol used to connect multiple Protocol Independent
Multicast sparse mode (PIM-SM) domains. MSDP allows multicast sources
for a group to be known to all rendezvous points (RPs) in different
domains. An RP runs MSDP over TCP to discover multicast sources.
An RP in a PIM-SM domain has an MSDP peering relationship with
MSDP-enabled routers in another domain. The peering relationship occurs
over a TCP connection, where primarily a list of sources sending to
multicast groups is exchanged. The TCP connections between RPs are
achieved by the underlying routing system. The receiving RP uses the
source lists to establish a source path.
The purpose of this topology is to have domains discover multicast
sources in other domains. If the multicast sources are of interest to a
domain that has receivers, multicast data is delivered over the normal,
source-tree building mechanism in PIM-SM.
An MSDP packet containing encapsulated Internet Group Management
Protocol (IGMP) data, received from an external MSDP-configured peer
router, can cause an affected device to reload. This vulnerability can
only be exploited if the router is explicitly joined to the multicast
group. The MSDP packet destination address is a unicast address and
can be addressed to any IP address on the affected device, including
loopback addresses.
Transit traffic will not trigger this vulnerability.
A vulnerable interface configuration contains an explicitly joined
multicast group. Some example configurations that permit exploitation of
this vulnerability are:
!--- Interface configured for SAP Listener Support (a common
multicast group)
interface GigabitEthernet0/0
ip address 192.168.0.1 255.255.255.0
ip pim sparse-mode
ip sap listen
!--- Interface configured to join a multicast group
interface GigabitEthernet0/0
ip address 192.168.0.1 255.255.255.0
ip pim sparse-mode
ip igmp join-group 224.2.127.254
You can also use the "show igmp interface" command to determine if an
interface is joined to a multicast group.
RouterA#show ip igmp interface
GigabitEthernet0/0 is up, line protocol is up
Internet address is 192.168.0.1/24
IGMP is enabled on interface
Current IGMP host version is 2
Current IGMP router version is 2
IGMP query interval is 60 seconds
IGMP querier timeout is 120 seconds
IGMP max query response time is 10 seconds
Last member query count is 2
Last member query response interval is 1000 ms
Inbound IGMP access group is not set
IGMP activity: 2 joins, 0 leaves
Multicast routing is disabled on interface
Multicast TTL threshold is 0
Multicast groups joined by this system (number of users):
224.2.127.254(2) 239.255.255.255(1)
This vulnerability is documented in Cisco bug ID CSCtr28857. This
vulnerability has been assigned Common Vulnerabilities and Exposures
(CVE) ID CVE-2012-0382.
Vulnerability Scoring Details
=============================
Cisco has scored the vulnerabilities in this advisory based on the
Common Vulnerability Scoring System (CVSS). The CVSS scoring in this
security advisory is in accordance with CVSS version 2.0.
CVSS is a standards-based scoring method that conveys vulnerability
severity and helps organizations determine the urgency and priority
of a response.
Cisco has provided a base and temporal score. Customers can also compute
environmental scores that help determine the impact of the vulnerability
in their own networks.
Cisco has provided additional information regarding CVSS at the
following link:
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
Cisco has also provided a CVSS calculator to compute the environmental
impact for individual networks at the following link:
http://intellishield.cisco.com/security/alertmanager/cvss
* CSCtr28857 ("MSDP-peered Router joined to a multicast group may crash")
CVSS Base Score - 7.1
Access Vector - Network
Access Complexity - Medium
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
CVSS Temporal Score - 6.4
Exploitability - Functional
Remediation Level - Workaround
Report Confidence - Confirmed
Impact
======
Successful exploitation of this vulnerability may cause the affected
device to reload. Repeated exploitation may result in a sustained DoS
condition.
Software Versions and Fixes
===========================
When considering software upgrades, customers are advised to
consult the Cisco Security Advisories and Responses archive at
http://www.cisco.com/go/psirt and review subsequent advisories to
determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and
software configurations will continue to be supported properly by the
new release. If the information is not clear, customers are advised
to contact the Cisco Technical Assistance Center (TAC) or their
contracted maintenance providers.
Cisco IOS Software
+-----------------
Each row of the following Cisco IOS Software table corresponds to a
Cisco IOS Software train. If a particular train is vulnerable, the
earliest releases that contain the fix are listed in the First Fixed
Release column. The First Fixed Release for All Advisories in the
March 2012 Bundled Publication column lists the earliest possible
releases that correct all the published vulnerabilities in the Cisco
IOS Software Security Advisory bundled publication. Cisco recommends
upgrading to the latest available release, where possible.
The Cisco IOS Software Checker allows customers to search for Cisco
Security Advisories that address specific Cisco IOS Software
releases. This tool is available on the Cisco Security Intelligence
Operations (SIO) portal at:
http://tools.cisco.com/security/center/selectIOSVersion.x
+------------------------------------------------------------+
| Major | Availability of Repaired Releases |
| Release | |
|------------+-----------------------------------------------|
| | | First Fixed Release |
| Affected | | for All Advisories in |
| 12.0-Based | First Fixed Release | the March 2012 Cisco |
| Releases | | IOS Software Security |
| | | Advisory Bundled |
| | | Publication |
|------------+-----------------------+-----------------------|
| 12.0S | 12.0(33)S10 | 12.0(33)S10 |
|------------+-----------------------+-----------------------|
| 12.0SY | 12.0(32)SY15 | 12.0(32)SY15 |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.0SZ | fixed in Release | fixed in Release |
| | 12.0S | 12.0S |
|------------+-----------------------+-----------------------|
| | | First Fixed Release |
| Affected | | for All Advisories in |
| 12.2-Based | First Fixed Release | the March 2012 Cisco |
| Releases | | IOS Software Security |
| | | Advisory Bundled |
| | | Publication |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2 | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2B | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2BC | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2BW | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2BX | fixed in Release | fixed in Release |
| | 12.2SB | 12.2SB |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2BY | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2BZ | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2CX | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2CY | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2CZ | fixed in Release | fixed in Release |
| | 12.0S | 12.0S |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2DA | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2DD | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2DX | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2EU | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2EW | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2EWA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2EX | fixed in Release | fixed in Release |
| | 15.0SE | 15.0SE |
|------------+-----------------------+-----------------------|
| 12.2EY | 12.2(52)EY4 | 12.2(52)EY4 |
| | 12.2(58)EY2 | |
|------------+-----------------------+-----------------------|
| | Releases prior to | |
| | 12.2(53)EZ are | |
| | vulnerable; Releases | Vulnerable; First |
| 12.2EZ | 12.2(53)EZ and later | fixed in Release |
| | are not vulnerable. | 15.0SE |
| | First fixed in | |
| | Release 15.0SE | |
|------------+-----------------------+-----------------------|
| | | Vulnerable; First |
| 12.2FX | Not vulnerable | fixed in Release |
| | | 15.0SE |
|------------+-----------------------+-----------------------|
| | | Vulnerable; First |
| 12.2FY | Not vulnerable | fixed in Release |
| | | 15.0SE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2FZ | fixed in Release | fixed in Release |
| | 12.2SE | 15.0SE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2IRA | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2IRB | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2IRC | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2IRD | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2IRE | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2IRF | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IRG | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.2IRH | 12.2(33)IRH1 | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IXA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IXB | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IXC | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IXD | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IXE | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IXF | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IXG | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2IXH | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| 12.2JA | Not vulnerable | Not vulnerable |
|------------+-----------------------+-----------------------|
| 12.2JK | Not vulnerable | Not vulnerable |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2MB | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2MC | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2MRA | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2MRB | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Releases prior to | Releases prior to |
| | 12.2(30)S are | 12.2(30)S are |
| | vulnerable; Releases | vulnerable; Releases |
| 12.2S | 12.2(30)S and later | 12.2(30)S and later |
| | are not vulnerable. | are not vulnerable. |
| | First fixed in | First fixed in |
| | Release 12.0S | Release 12.0S |
|------------+-----------------------+-----------------------|
| 12.2SB | 12.2(33)SB12 | 12.2(33)SB12 |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SBC | fixed in Release | fixed in Release |
| | 12.2SB | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SCA | fixed in Release | fixed in Release |
| | 12.2SCE | 12.2SCE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SCB | fixed in Release | fixed in Release |
| | 12.2SCE | 12.2SCE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SCC | fixed in Release | fixed in Release |
| | 12.2SCE | 12.2SCE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SCD | fixed in Release | fixed in Release |
| | 12.2SCE | 12.2SCE |
|------------+-----------------------+-----------------------|
| 12.2SCE | 12.2(33)SCE5 | 12.2(33)SCE6 |
|------------+-----------------------+-----------------------|
| 12.2SCF | 12.2(33)SCF2 | 12.2(33)SCF2 |
|------------+-----------------------+-----------------------|
| 12.2SE | 12.2(55)SE5 | |
| | | 12.2(55)SE5 * |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SEA | fixed in Release | fixed in Release |
| | 12.2SE | 15.0SE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SEB | fixed in Release | fixed in Release |
| | 12.2SE | 15.0SE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SEC | fixed in Release | fixed in Release |
| | 12.2SE | 15.0SE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SED | fixed in Release | fixed in Release |
| | 12.2SE | 15.0SE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SEE | fixed in Release | fixed in Release |
| | 12.2SE | 15.0SE |
|------------+-----------------------+-----------------------|
| | | Vulnerable; First |
| 12.2SEF | Not vulnerable | fixed in Release |
| | | 15.0SE |
|------------+-----------------------+-----------------------|
| | Releases prior to | |
| | 12.2(25)SEG4 are | |
| | vulnerable; Releases | Vulnerable; First |
| 12.2SEG | 12.2(25)SEG4 and | fixed in Release |
| | later are not | 15.0SE |
| | vulnerable. First | |
| | fixed in Release | |
| | 15.0SE | |
|------------+-----------------------+-----------------------|
| | 12.2(53)SG7; | 12.2(53)SG7; |
| 12.2SG | Available on | Available on |
| | 07-MAY-12 | 07-MAY-12 |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SGA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| 12.2SL | Not vulnerable | Not vulnerable |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SM | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SO | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SQ | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SRA | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SRB | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SRC | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SRD | fixed in Release | fixed in Release |
| | 12.2SRE | 12.2SRE |
|------------+-----------------------+-----------------------|
| 12.2SRE | 12.2(33)SRE5 | 12.2(33)SRE6 |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.2STE | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SU | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Releases up to and | Releases up to and |
| 12.2SV | including 12.2(18)SV2 | including 12.2(18)SV2 |
| | are not vulnerable. | are not vulnerable. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SVA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SVC | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SVD | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SVE | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SW | fixed in Release | fixed in Release |
| | 12.4SW | 12.4T |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SX | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SXA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SXB | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SXD | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SXE | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SXF | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2SXH | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| 12.2SXI | 12.2(33)SXI9 | 12.2(33)SXI9 |
|------------+-----------------------+-----------------------|
| 12.2SXJ | 12.2(33)SXJ2 | 12.2(33)SXJ2 |
|------------+-----------------------+-----------------------|
| | 12.2(50)SY2; | 12.2(50)SY2; |
| 12.2SY | Available on | Available on |
| | 11-JUN-12 | 11-JUN-12 |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2SZ | fixed in Release | fixed in Release |
| | 12.0S | 12.0S |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2T | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2TPC | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XA | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XB | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XC | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XD | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XE | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XF | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XG | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XH | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XI | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XJ | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XK | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XL | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XM | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Please see Cisco | Please see Cisco |
| 12.2XNA | IOS-XE Software | IOS-XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | Please see Cisco | Please see Cisco |
| 12.2XNB | IOS-XE Software | IOS-XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | Please see Cisco | Please see Cisco |
| 12.2XNC | IOS-XE Software | IOS-XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | Please see Cisco | Please see Cisco |
| 12.2XND | IOS-XE Software | IOS-XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | Please see Cisco | Please see Cisco |
| 12.2XNE | IOS-XE Software | IOS-XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | Please see Cisco | Please see Cisco |
| 12.2XNF | IOS-XE Software | IOS-XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2XO | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XQ | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Releases prior to | Releases prior to |
| | 12.2(15)XR are | 12.2(15)XR are |
| | vulnerable; Releases | vulnerable; Releases |
| 12.2XR | 12.2(15)XR and later | 12.2(15)XR and later |
| | are not vulnerable. | are not vulnerable. |
| | First fixed in | First fixed in |
| | Release 12.4 | Release 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XS | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XT | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XU | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XV | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2XW | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2YA | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YC | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YD | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YE | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YK | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YO | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| | fixed in Release 12.4 | fixed in Release |
| 12.2YP | Releases up to and | 15.0M |
| | including 12.2(8)YP | Releases up to and |
| | are not vulnerable. | including 12.2(8)YP |
| | | are not vulnerable. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YT | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YW | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YX | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YY | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2YZ | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZB | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZC | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZD | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2ZE | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2ZH | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZJ | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZP | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZU | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.2ZX | fixed in Release | fixed in Release |
| | 12.2SB | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZY | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.2ZYA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | | First Fixed Release |
| Affected | | for All Advisories in |
| 12.3-Based | First Fixed Release | the March 2012 Cisco |
| Releases | | IOS Software Security |
| | | Advisory Bundled |
| | | Publication |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3 | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3B | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3BC | fixed in Release | fixed in Release |
| | 12.2SCE | 12.2SCE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3BW | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Releases prior to | |
| | 12.3(4)JA2 are | |
| | vulnerable; Releases | Vulnerable; First |
| 12.3JA | 12.3(4)JA2 and later | fixed in Release |
| | are not vulnerable. | 12.4JA |
| | Migrate to any | |
| | release in 12.4JA | |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.3JEA | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.3JEB | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.3JEC | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.3JED | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | Releases up to and | |
| | including 12.3(2)JK3 | |
| | are not vulnerable. | Vulnerable; First |
| 12.3JK | Releases 12.3(8)JK1 | fixed in Release |
| | and later are not | 15.0M |
| | vulnerable. First | |
| | fixed in Release 12.4 | |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.3JL | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| 12.3JX | Not vulnerable | Not vulnerable |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3T | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.3TPC | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| 12.3VA | Not vulnerable | Not vulnerable |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XA | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.3XB | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XC | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XD | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XE | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.3XF | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XG | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XI | fixed in Release | fixed in Release |
| | 12.2SB | 12.2SRE |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XJ | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XK | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XL | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XQ | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XR | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XU | fixed in Release | fixed in Release |
| | 12.4T | 12.4T |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XW | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XX | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XY | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3XZ | fixed in Release 12.4 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YD | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YF | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YG | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YI | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YJ | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YK | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YM | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YQ | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YS | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YT | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YU | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3YX | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.3YZ | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.3ZA | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | | First Fixed Release |
| Affected | | for All Advisories in |
| 12.4-Based | First Fixed Release | the March 2012 Cisco |
| Releases | | IOS Software Security |
| | | Advisory Bundled |
| | | Publication |
|------------+-----------------------+-----------------------|
| | 12.4(25g); Available | Vulnerable; First |
| 12.4 | on 19-SEP-12 | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4GC | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| 12.4JA | Not vulnerable | 12.4(23c)JA4 |
| | | 12.4(25e)JA |
|------------+-----------------------+-----------------------|
| | | Vulnerable; First |
| 12.4JAX | Not vulnerable | fixed in Release |
| | | 12.4JA |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JDA | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JDC | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JDD | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JDE | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JHA | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JHB | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JHC | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JK | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 12.4JL | Not vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | | Vulnerable; First |
| 12.4JX | Not vulnerable | fixed in Release |
| | | 12.4JA |
|------------+-----------------------+-----------------------|
| | | Vulnerable; First |
| 12.4JY | Not vulnerable | fixed in Release |
| | | 12.4JA |
|------------+-----------------------+-----------------------|
| | | Vulnerable; First |
| 12.4JZ | Not vulnerable | fixed in Release |
| | | 12.4JA |
|------------+-----------------------+-----------------------|
| | 12.4(24)MD7; | 12.4(22)MD3; |
| 12.4MD | Available on | Available on |
| | 29-Jun-12 | 30-MAR-12 |
|------------+-----------------------+-----------------------|
| 12.4MDA | 12.4(24)MDA11 | 12.4(24)MDA11 |
|------------+-----------------------+-----------------------|
| 12.4MDB | 12.4(24)MDB5a | 12.4(24)MDB5a |
|------------+-----------------------+-----------------------|
| 12.4MDC | Not vulnerable | Not vulnerable |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4MR | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4MRA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4MRB | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | | Vulnerable; First |
| 12.4SW | 12.4(15)SW8a | fixed in Release |
| | | 15.0M |
|------------+-----------------------+-----------------------|
| | 12.4(15)T17 | 12.4(15)T17 |
| 12.4T | 12.4(24)T7 | 12.4(24)T7 |
| | | |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XA | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XB | fixed in Release | fixed in Release |
| | 12.4T | 12.4T |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XC | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XD | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XE | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XF | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XG | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XJ | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XK | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4XL | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XM | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4XN | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4XP | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XQ | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XR | fixed in Release | fixed in Release |
| | 12.4T | 12.4T |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XT | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4XV | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XW | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XY | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4XZ | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 12.4YA | fixed in Release | fixed in Release |
| | 12.4T | 15.0M |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4YB | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 12.4YD | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| 12.4YE | 12.4(24)YE3d | 12.4(24)YE3d |
|------------+-----------------------+-----------------------|
| 12.4YG | 12.4(24)YG4 | 12.4(24)YG4 |
|------------+-----------------------+-----------------------|
| | | First Fixed Release |
| Affected | | for All Advisories in |
| 15.0-Based | First Fixed Release | the March 2012 Cisco |
| Releases | | IOS Software Security |
| | | Advisory Bundled |
| | | Publication |
|------------+-----------------------+-----------------------|
| 15.0M | 15.0(1)M8 | 15.0(1)M8 |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 15.0MR | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 15.0MRA | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| | 15.0(1)S5 | 15.0(1)S5 |
| | Cisco IOS XE devices: | Cisco IOS XE devices: |
| 15.0S | Please see Cisco IOS | Please see Cisco IOS |
| | XE Software | XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| 15.0SA | Not vulnerable | Not vulnerable |
|------------+-----------------------+-----------------------|
| | 15.0(1)SE1 | |
| 15.0SE | 15.0(2)SE; Available | 15.0(1)SE1 |
| | on 06-AUG-12 | |
|------------+-----------------------+-----------------------|
| | 15.0(2)SG2 | 15.0(2)SG2 |
| | Cisco IOS XE devices: | Cisco IOS XE devices: |
| 15.0SG | Please see Cisco | Please see Cisco |
| | IOS-XE Software | IOS-XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| 15.0SY | Not vulnerable | 15.0(1)SY1 |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 15.0XA | fixed in Release | fixed in Release |
| | 15.1T | 15.1T |
|------------+-----------------------+-----------------------|
| | Cisco IOS XE devices: | Cisco IOS XE devices: |
| 15.0XO | Please see Cisco | Please see Cisco |
| | IOS-XE Software | IOS-XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | | First Fixed Release |
| Affected | | for All Advisories in |
| 15.1-Based | First Fixed Release | the March 2012 Cisco |
| Releases | | IOS Software Security |
| | | Advisory Bundled |
| | | Publication |
|------------+-----------------------+-----------------------|
| 15.1EY | 15.1(2)EY1a | 15.1(2)EY2 |
|------------+-----------------------+-----------------------|
| 15.1GC | 15.1(2)GC2 | 15.1(2)GC2 |
|------------+-----------------------+-----------------------|
| 15.1M | 15.1(4)M2 | 15.1(4)M4; Available |
| | 15.1(4)M3a | on 30-MAR-12 |
|------------+-----------------------+-----------------------|
| | | Vulnerable; contact |
| | | your support |
| | | organization per the |
| 15.1MR | 15.1(1)MR3 | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------+-----------------------|
| | 15.1(3)S1 | 15.1(3)S2 |
| | Cisco IOS XE devices: | Cisco IOS XE devices: |
| 15.1S | Please see Cisco IOS | Please see Cisco IOS |
| | XE Software | XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | Not vulnerable | Not vulnerable |
| | Cisco IOS XE devices: | Cisco IOS XE devices: |
| 15.1SG | Please see Cisco IOS | Please see Cisco IOS |
| | XE Software | XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | Vulnerable; contact | Vulnerable; contact |
| | your support | your support |
| | organization per the | organization per the |
| 15.1SNG | instructions in | instructions in |
| | Obtaining Fixed | Obtaining Fixed |
| | Software section of | Software section of |
| | this advisory. | this advisory. |
|------------+-----------------------+-----------------------|
| 15.1SNH | Not vulnerable | Not vulnerable |
|------------+-----------------------+-----------------------|
| | 15.1(1)T5; Available | |
| | on 18-MAY-12 | |
| 15.1T | 15.1(2)T5; Available | 15.1(3)T3 |
| | on 27-APR-12 | |
| | 15.1(3)T3 | |
|------------+-----------------------+-----------------------|
| | Vulnerable; First | Vulnerable; First |
| 15.1XB | fixed in Release | fixed in Release |
| | 15.1T | 15.1T |
|------------+-----------------------+-----------------------|
| | | First Fixed Release |
| Affected | | for All Advisories in |
| 15.2-Based | First Fixed Release | the March 2012 Cisco |
| Releases | | IOS Software Security |
| | | Advisory Bundled |
| | | Publication |
|------------+-----------------------+-----------------------|
| 15.2GC | 15.2(1)GC1 | 15.2(1)GC2 |
|------------+-----------------------+-----------------------|
| | Not vulnerable | 15.2(1)S1 |
| | Cisco IOS XE devices: | Cisco IOS XE devices: |
| 15.2S | Please see Cisco IOS | Please see Cisco IOS |
| | XE Software | XE Software |
| | Availability | Availability |
|------------+-----------------------+-----------------------|
| | 15.2(1)T1 | 15.2(1)T2 |
| 15.2T | 15.2(2)T | 15.2(2)T1 |
| | 15.2(2)T1 | 15.2(3)T; Available |
| | | on 30-MAR-12 |
+------------------------------------------------------------+
* Cisco Catalyst 3550 Series Switches support the Internet Key Exchange
(IKE) feature and are vulnerable to Cisco bug ID CSCts38429 when the
devices are running Layer 3 images; however, this product reached
the End of Software Maintenance milestone. Cisco 3550 Series SMI
Switches that are running Layer 2 images do not support IKE and are not
vulnerable. No other Cisco devices that run 12.2SE-based software are
vulnerable.
Cisco IOS XE Software
+--------------------
Cisco IOS XE Software is affected by the vulnerability that is
disclosed in this document.
+------------------------------------------------------------+
| Cisco IOS | | First Fixed Release for All |
| XE | First Fixed | Advisories in the March 2012 |
| Software | Release | Cisco IOS Software Security |
| Release | | Advisory Bundled Publication |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 2.1.x | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 2.2.x | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 2.3.x | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 2.4.x | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 2.5.x | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 2.6.x | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 3.1.xS | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 3.1.xSG | migrate to | Vulnerable; migrate to 3.2.2SG |
| | 3.2.2SG or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 3.2.xS | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| 3.2.xSG | 3.2.2SG | 3.2.2SG |
|-----------+--------------+---------------------------------|
| | Vulnerable; | |
| 3.3.xS | migrate to | Vulnerable; migrate to 3.4.2S |
| | 3.4.1S or | or later. |
| | later. | |
|-----------+--------------+---------------------------------|
| 3.3.xSG | Not | Not Vulnerable |
| | Vulnerable | |
|-----------+--------------+---------------------------------|
| 3.4.xS | 3.4.1S | 3.4.2S |
|-----------+--------------+---------------------------------|
| 3.5.xS | Not | 3.5.1S |
| | vulnerable | |
|-----------+--------------+---------------------------------|
| 3.6.xS | Not | Not vulnerable |
| | vulnerable | |
+------------------------------------------------------------+
For a mapping of Cisco IOS XE Software releases to Cisco IOS Software
releases, refer to Cisco IOS XE 2 Release Notes, Cisco IOS XE 3S
Release Notes, and Cisco IOS XE 3SG Release Notes.
Cisco IOS XR Software
+--------------------
Cisco IOS XR Software is not affected by any of the vulnerabilities
disclosed in the March 2012 Cisco IOS Software Security Advisory
Bundled Publication.
Workarounds
===========
Customers with an MSDP-configured router who do not require membership
to multicast groups can remove the "ip sap listen" or "ip igmp
join-group <multicast-group address>" commands on the router interface
as a workaround.
For example:
RouterA#conf t
RouterA(config)# interface GigabitEthernet0/0
RouterA(config-if)# no ip sap listen
RouterA(config-if)# no ip igmp join-group 224.2.127.254
interface GigabitEthernet0/0
ip address 192.168.0.1 255.255.255.0
ip pim sparse-mode
To determine if a router is configured for MSDP peers, run the
command "show ip msdp peer" at the router command prompt:
RouterA# show ip msdp peer
MSDP Peer 192.168.0.2 (?), AS 100
Connection status:
State: Up, Resets: 0, Connection source: none configured
Uptime(Downtime): 01:23:42, Messages sent/received: 25/24
Output messages discarded: 0
Connection and counters cleared 01:15:14 ago
SA Filtering:
Input (S,G) filter: none, route-map: none
Input RP filter: none, route-map: none
Output (S,G) filter: none, route-map: none
Output RP filter: none, route-map: none
SA-Requests:
Input filter: none
Peer ttl threshold: 0
SAs learned from this peer: 0
Input queue size: 0, Output queue size: 0
Message counters:
RPF Failure count: 0
SA Messages in/out: 13/8
SA Requests in: 0
SA Responses out: 0
Data Packets in/out: 7/8
To remove an untrusted MSDP peer from your configuration, use the "no
ip msdp peer <address>" or "ip msdp default-peer <ip-address | name>"
command on the router configuration interface.
RouterA(config)# no ip msdp peer 192.168.0.2
interface GigabitEthernet0/0
ip address 192.168.0.1 255.255.255.0
ip pim sparse-mode
Obtaining Fixed Software
========================
Cisco has released free software updates that address the
vulnerability|vulnerabilities described in this advisory. Prior to
deploying software, customers are advised to consult their
maintenance providers or check the software for feature set
compatibility and known issues that are specific to their
environments.
Customers may only install and expect support for feature
sets they have purchased. By installing, downloading,
accessing, or otherwise using such software upgrades, customers
agree to follow the terms of the Cisco software license at
http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html,
or as set forth at
http://www.cisco.com/public/sw-center/sw-usingswc.shtml.
Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for
software upgrades.
Customers with Service Contracts
+-------------------------------
Customers with contracts should obtain upgraded software through their
regular update channels. For most customers, upgrades should be obtained
through the Software Center on Cisco.com at http://www.cisco.com.
Customers Using Third-Party Support Organizations
+------------------------------------------------
Customers with Cisco products that are provided or maintained through
prior or existing agreements with third-party support organizations,
such as Cisco Partners, authorized resellers, or service providers,
should contact that organization for assistance with the appropriate
course of action.
The effectiveness of any workaround or fix depends on specific
customer situations, such as product mix, network topology, traffic
behavior, and organizational mission. Because of the variety of
affected products and releases, customers should consult their
service providers or support organizations to ensure that any applied
workaround or fix is the most appropriate in the intended network
before it is deployed.
Customers Without Service Contracts
+----------------------------------
Customers who purchase directly from Cisco but do not hold a Cisco
service contract and customers who make purchases through third-party
vendors but are unsuccessful in obtaining fixed software through
their point of sale should obtain upgrades by contacting the Cisco
Technical Assistance Center (TAC):
* +1 800 553 2447 (toll free from within North America)
* +1 408 526 7209 (toll call from anywhere in the world)
* e-mail: tac(a)cisco.com
Customers should have the product serial number available and be
prepared to provide the URL of this advisory as evidence of
entitlement to a free upgrade. Customers without service contracts
should request free upgrades through the TAC.
Refer to Cisco Worldwide Contacts at
http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html
for additional TAC contact information, including localized telephone
numbers, instructions, and e-mail addresses for support in various
languages.
Exploitation and Public Announcements
=====================================
The Cisco Product Security Incident Response Team (PSIRT) is not
aware of any public announcements or malicious use of the
vulnerability that is described in this advisory.
This vulnerability was found during the troubleshooting of customer
service requests.
Status of This Notice: Final
============================
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY
KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE
INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS
AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS
DOCUMENT AT ANY TIME.
A stand-alone copy or Paraphrase of the text of this document that
omits the distribution URL in the following section is an
uncontrolled copy, and may lack important information or contain
factual errors.
Distribution
============
This advisory is posted on Cisco Security Intelligence Operations at
the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-…
Additionally, a text version of this advisory is clear signed with
the Cisco PSIRT PGP key and circulated among the following e-mail
addresses:
* cust-security-announce(a)cisco.com
* first-bulletins(a)lists.first.org
* bugtraq(a)securityfocus.com
* vulnwatch(a)vulnwatch.org
* cisco(a)spot.colorado.edu
* cisco-nsp(a)puck.nether.net
* full-disclosure(a)lists.grok.org.uk
Future updates of this advisory, if any, will reside on Cisco.com but
may not be announced on mailing lists. Users can monitor this
advisory's URL for any updates.
Revision History
================
+------------------------------------------------------------+
| Revision 1.0 | 2012-March-28 | Initial public release |
+------------------------------------------------------------+
Cisco Security Procedures
=========================
Complete information about reporting security vulnerabilities in Cisco
products, obtaining assistance with security incidents, and registering
to receive security information from Cisco is available on Cisco.com at
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.….
This web page includes instructions for press inquiries
regarding Cisco Security Advisories. All Cisco Security Advisories are
available at http://www.cisco.com/go/psirt.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iF4EAREIAAYFAk9xNOEACgkQQXnnBKKRMND6JgD/TLEfBY6XfhL7hpQW01gFYpBT
sO8HTYkhaAOnkwSN/psBAIOin3zSOfsxb42tDq57ub1MvMM7zk28YqWG2V3y6p7G
=Ja0H
-----END PGP SIGNATURE-----
1
0
> Brant Ian Stevens <mailto:branto@argentiumsolutions.com>
> March 28, 2012 11:41 AM
> The CER is the perfect box for this application, save for the
> redundant processors. The MLXe will work great if you want a small
> form factor and redundant processors.
>
> -Brant
> George Bonser <mailto:gbonser@seven.com>
> March 28, 2012 11:34 AM
>
>
> I have been using a pair of CER (but not the -RT) at one location for
> a while now and so far have been flawless. These particular units
> aren't taking full tables so don't need the -RT but I wouldn't have
> any trouble using them. The -RT are basically a 1U XMR.
>
> Tom Daly <mailto:tom@dyn.com>
> March 27, 2012 11:59 PM
> Brent,
> Your options include, for smaller boxes:
>
> - Brocade CER series, but make sure you the -RT versions due to RAM
> (haven't tried, though)
> - Juniper MX (MX80 is working well for us)
> - Cisco ASR1006 (heard a lot about BGP price issues)
>
> But for 300mb/sec, what not OpenBSD + Quagga?
>
> Tom
>
>
>
> ----- Original Message -----
>
> Jo Rhett <mailto:jrhett@netconsonance.com>
> March 27, 2012 6:00 PM
> I was very happy with the E300 as a data center core switch handling
> multiple full feeds (around 15) with about 10x the traffic you are
> talking about. The only problem I had was that Force10 didn't have a
> useful (basically forklift) upgrade to get more IPv4 prefixes, and the
> more I talked to them and the more I showed them the graphs
> demonstrating what we'd need for prefix space assuming even the most
> conservative assumptions at depletion, the more I realized they really
> Did Not Get It. In fact, their brand new architecture recently
> announced had only 500k prefixes allowed, at a time that the Juniper
> MX platform handled 2million easily.
>
> So I would be fine using Force10 again, given the following changes:
> 1. Large limits on IP prefixes allowed
> 2. Reallocation of useless memory from stupid things like MAC tables
> to prefixes (data centers have very few MACs, very many prefixes)
> 3. Command line logging
>
> The units worked great at failover, never had any problems gracefully
> failing over from one RP to another, but if you have to cold boot them
> for any reason it takes like 5 minutes :(
>
1
0
Hello all,
I was wondering when can we actually expect RPKI / origin validation
support from router vendors. I know where Cisco and Juniper stand, in
fact, I have been testing both implementations.
So, I would like to know if some one has heard anything from:
- Huawei
- Alcatel
- Others ?
regards
Carlos
1
0
Rrlr
----- Original Message -----
From: nanog-request(a)nanog.org <nanog-request(a)nanog.org>
To: nanog(a)nanog.org <nanog(a)nanog.org>
Sent: Tue Mar 27 11:22:36 2012
Subject: NANOG Digest, Vol 50, Issue 113
Send NANOG mailing list submissions to
nanog(a)nanog.org
To subscribe or unsubscribe via the World Wide Web, visit
https://mailman.nanog.org/mailman/listinfo/nanog
or, via email, send a message with subject or body 'help' to
nanog-request(a)nanog.org
You can reach the person managing the list at
nanog-owner(a)nanog.org
When replying, please edit your Subject line so it is more specific
than "Re: Contents of NANOG digest..."
Today's Topics:
1. Re: OWA blocked by China (TR Shaw)
2. RE: OWA blocked by China (Thomas York)
3. Re: Muni Fiber (Ray Soucy)
4. Re: Muni Fiber (was: Re: last mile, regulatory incentives,
etc) (Owen DeLong)
5. Re: Muni Fiber (Owen DeLong)
----------------------------------------------------------------------
Message: 1
Date: Tue, 27 Mar 2012 10:45:25 -0400
From: TR Shaw <tshaw(a)oitc.com>
To: Jim Gonzalez <jim(a)impactbusiness.com>
Cc: nanog(a)nanog.org
Subject: Re: OWA blocked by China
Message-ID: <DD584E3F-7B92-4076-8983-A24C8D699E6D(a)oitc.com>
Content-Type: text/plain; charset=us-ascii
On Mar 27, 2012, at 10:16 AM, Jim Gonzalez wrote:
> Hello,
>
> One of my customers has workers in China. There outlook web
> access is blocked by the China Firewall. I was just wondering if anyone had
> this issue ? I have not tried any work arounds as of yet just gathering info
>
Jim
Try a tunnel?
Tom
------------------------------
Message: 2
Date: Tue, 27 Mar 2012 10:50:53 -0400
From: "Thomas York" <straterra(a)fuhell.com>
To: <tshaw(a)oitc.com>, <jim(a)impactbusiness.com>
Cc: nanog(a)nanog.org
Subject: RE: OWA blocked by China
Message-ID: <008501cd0c29$0383bc90$0a8b35b0$(a)fuhell.com>
Content-Type: text/plain; charset="us-ascii"
Good luck with that. I have three plants in China and China Telecom loves
batting down our VPN tunnels. They've left the current solution alone for a
few months now. It appears they try to do DPI on SSL/IPSec to see if it's a
VPN tunnel. I placed our SSL OpenVPN tunnel inside of a GRE tunnel. For some
reason, they don't seem to be doing DPI on it and mostly leave it alone now.
I'm sure it'll change at some point soon, though.
-- Thomas York
-----Original Message-----
From: TR Shaw [mailto:tshaw@oitc.com]
Sent: Tuesday, March 27, 2012 10:45 AM
To: Jim Gonzalez
Cc: nanog(a)nanog.org
Subject: Re: OWA blocked by China
On Mar 27, 2012, at 10:16 AM, Jim Gonzalez wrote:
> Hello,
>
> One of my customers has workers in China. There outlook
> web access is blocked by the China Firewall. I was just wondering if
> anyone had this issue ? I have not tried any work arounds as of yet
> just gathering info
>
Jim
Try a tunnel?
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 7138 bytes
Desc: not available
URL: <http://mailman.nanog.org/pipermail/nanog/attachments/20120327/c6d00a21/atta…>
------------------------------
Message: 3
Date: Tue, 27 Mar 2012 10:57:51 -0400
From: Ray Soucy <rps(a)maine.edu>
To: Miles Fidelman <mfidelman(a)meetinghouse.net>
Cc: NANOG <nanog(a)nanog.org>
Subject: Re: Muni Fiber
Message-ID:
<CALFTrnMbqbqUxd4RJZN6jtBWOo94LQfg-3xy6qp8LBk7_kn+oQ(a)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
"Politically and legally are another matter" being key ;-)
It was a long hard fight even in Maine to get a dark fiber utility (over a
year of going before the legislature). The ILEC lobbyists are very
influential and want to maintain the status quo at all costs.
A lot of the examples you listed are pilot projects that providers do
mostly for PR purposes so they can say "we provide FTTH" with a "* in
select areas" footnote. They rarely see any large scale adoption and are
usually operated at a loss.
I think the key problem is that building out fiber doesn't make business
sense if each provider in an area has to build out identical infrastructure
and doesn't have the safety of a monopoly. As mentioned, providers are
also concerned with the time it will take to realize ROI. The result is
that we need to subsidize this infrastructure if we want it, but we end up
with no competition and poor service if the service provider is the one
getting those subsidies. Aside from very urban areas where the density can
support the investment, the only solution becomes to create an open access
public utility to maintain the fiber plant, cans, huts, etc. and prohibit
them from offering any lit services over that fiber.
As for rural areas not needing broadband; I think it's a matter of
national interest that everyone has access to broadband. Just like power.
When we make an effort to lift everyone up, we all do better.
The Internet, like the Interstate highway system, is a time machine. It
shortens distances between people and makes us more productive. Even
better, it allows businesses to locate anywhere.
On Tue, Mar 27, 2012 at 10:02 AM, Miles Fidelman <mfidelman(a)meetinghouse.net
> wrote:
> Ray Soucy wrote:
>
>>
>> If people got serious about FTTH, I think a _very_ optimistic timeline
>> would be something like:
>>
>
> Not optimistic at all, technically or operationally. Politically and
> legally are another matter:
>
>>
>> 2015 - First communities coming online, 100M to the home (probably Gigabit
>> line rate, but throttled).
>>
>
> There's been quite a lot of FTTH for quite a few years now. In addition
> to the Verizon FIOS stuff - up to 135mbps down/ 35mbps up available where I
> am (though I've been quite happy with lower speeds).
>
> Municipal electric utilities have been deploying fiber right and left.
> Probably 200 systems operational. The two that come to mind immediately
> are:
>
> Chattanooga, TN - GigE FTTH Today - http://chattanoogagig.com/ -
>
> Grant County PUD (public utility district), OR has had the fiber in for a
> few years, selling wholesale - not sure what specific retail services are
> available
>
> There'd probably be a lot more available if the big telcos and cable
> companies weren't doing everything they can to block municipal bids.
>
>
>
>
>
>
> --
> In theory, there is no difference between theory and practice.
> In practice, there is. .... Yogi Berra
>
>
>
>
--
Ray Soucy
Epic Communications Specialist
Phone: +1 (207) 561-3526
Networkmaine, a Unit of the University of Maine System
http://www.networkmaine.net/
------------------------------
Message: 4
Date: Tue, 27 Mar 2012 08:03:44 -0700
From: Owen DeLong <owen(a)delong.com>
To: Jay Ashworth <jra(a)baylink.com>
Cc: NANOG <nanog(a)nanog.org>
Subject: Re: Muni Fiber (was: Re: last mile, regulatory incentives,
etc)
Message-ID: <AF7AB7CD-AB81-4D99-82DD-37688FFB18E1(a)delong.com>
Content-Type: text/plain; charset=us-ascii
Actual public financed non-muni fiber is skipping the easy parts and deploying only a few of the hard parts.
(current actual results of USF)
How is that an improvement?
Owen
On Mar 25, 2012, at 8:47 AM, Jay Ashworth wrote:
> Well, for my part, /most of the poiny/ of muni is The Public Good; if /actual/ bond financed muni fiber is skipping the Hard Parts, it deserves to lose.
>
> Time to assemble some stats, I guess.
> -- jra
> --
> Sent from my Android phone with K-9 Mail. Please excuse my brevity.
>
> Owen DeLong <owen(a)delong.com> wrote:
> Who cares?
>
> It's time to stop letting rural deployments stand in the way of municipal deployments.
>
> It's a natural part of living outside of a population center that it costs more to bring utility services to you. I'm not entirely opposed (though somewhat) to subsidizing that to some extent, but, I'm tired of municipal deployments being blocked by this sense of equal entitlement to rural.
>
> The rural builds cost more, take longer, and yield lower revenues. It makes no sense to let that stand in the way of building out municipalities. Nothing prevents rural residents who have the means and really want their buildout prioritized from building a collective to get it done.
>
> Subsidizing rural build-out is one thing. Failing to build out municipalities because of some sense of rural entitlement? That's just stupid.
>
> Owen
>
>
> Sent from my iPa
> d
>
> On Mar 24, 2012, at 12:42 PM, "Frank Bulk" <frnkblk(a)iname.com> wrote:
>
> > How many munis serve the rural like they do the urban?
> >
> > In the vast majority of cases the munis end up doing what ILECs only wish they could do -- serve the most profitable customers.
> >
> > Frank
> >
> > -----Original Message-----
> > From: Jay Ashworth [mailto:jra@baylink.com]
> > Sent: Thursday, March 22, 2012 12:52 PM
> > To: NANOG
> > Subject: Muni Fiber (was: Re: last mile, regulatory incentives, etc)
> >
> > <snip>
> >
> > Oh, it's *much* worse than that, John.
> >
> > The *right*, long term solution to all of these problems is for
> > municipalities to do the fiber build, properly engineered, and even
> > subbed out to a contractor to build and possibly operate...
> >
> > offering *only* layer 1 service at wholesale. Any comer
> can
> light up
> > each city's pop, and offer retail service over the FTTH fiber to that
> > customer at whatever rate they like, and the city itself doesn't offer
> > layer 2 or 3 service at all.
> >
> > High-speed optical data *is* the next natural monopoly, after power
> > and water/sewer delivery, and it's time to just get over it and do it
> > right.
> >
> > As you might imagine, this environment -- one where the LEC doesn't own
> > the physical plant -- scares the ever-lovin' daylights out of Verizon
> > (among others), so much so that they *have gotten it made illegal* in
> > several states, and they're lobbying to expand that footprint.
> >
> > See, among other sites: http://www.muninetworks.org/
> >
> > As you might imagine, I am a fairly strong proponent of muni layer 1 --
> > or even layer 2, where the municipality suppli
> es
> (matching) ONTs, and
> > services have to fit over GigE -- fiber delivery of high-speed data
> > service.
> >
> > I believe Google agrees with me. :-)
> >
> > Cheers,
> > -- jra
> >
> > Cheers,
> > -- jra
> > --
> > Jay R. Ashworth Baylink jra(a)baylink.com
> > Designer The Things I Think RFC 2100
> > Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII
> > St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
> >
> >
> >
------------------------------
Message: 5
Date: Tue, 27 Mar 2012 08:19:46 -0700
From: Owen DeLong <owen(a)delong.com>
To: Leo Bicknell <bicknell(a)ufp.org>
Cc: nanog(a)nanog.org
Subject: Re: Muni Fiber
Message-ID: <72636209-A7EF-4AB8-A145-55D6B3A06EAD(a)delong.com>
Content-Type: text/plain; charset=us-ascii
>
> Politically the makings of a similar situation already exist.
> Goverment has swung the USF funds to fuel rual broadband, strongly
> favoring FTTx where it makes sense. While companies like Verizon
> enjoy not having to share their fiber lines now, these same forces
> will conspire to drive unbundling in fiber, just as it did in copper.
> What they are getting now is simply a first mover advantage.
>
It's a bigger first mover advantage. They've learned their lesson from the
copper unbundling and they are being allowed to deploy fiber in ways
that will make it hard (impossible) to sell it on an unbundled basis later.
> Government at the end of the day will fund the 20-40% of America
> which is profitable in the long run, but not in commercial time
> scales. They will also fund the 10% of America which will never
> be profitable, no mater what. It happened with Electricity and
> Telephone, and I suspect the societal drivers to do the same with
> the Internet will be even stronger. Companies will have to accept an
> unbundled tail to get access to this 30-50% of the market; and while
> they aren't interested now, they will be very soon.
Maybe, but, if what is happening now is allowed to continue, it will:
1. Not encourage competition anywhere.
2. Allow existing monopolies to preserve and extend those monopolies.
3. Cost even more than it already has.
4. Continue to lag behind the rest of the world.
5. Result in an inferior solution.
What is needed is for regulators to step up with a bold vision for the
public good. We need to encourage (or even require) local authorities
to deploy (themselves or by contract) independent L1 infrastructure (yes,
I like the 4-8 strands per residence star topology idea) to every structure
within their jurisdiction and make it available to L2+ service providers
on an equal-cost-per-subscriber basis in each jurisdiction.
Yes, this means that the cost per subscriber will be lower in denser
jurisdictions than it will be in less dense jurisdictions. However, users
in those jurisdictions should expect to pay more for services and the
ability to attract L2+ service providers can be achieved in a variety
of ways.
The important thing is to make sure that if public money is being used
to build infrastructure, it becomes infrastructure that is useful to said
public and not just a subsidy to some corporation for extending its
monopoly in a manner that is often contrary to the public good.
Unfortunately, that is exactly where the money is going today.
Owen
End of NANOG Digest, Vol 50, Issue 113
**************************************
This E-mail and any of its attachments may contain Time Warner Cable proprietary information, which is privileged, confidential, or subject to copyright belonging to Time Warner Cable. This E-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this E-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this E-mail is strictly prohibited and may be unlawful. If you have received this E-mail in error, please notify the sender immediately and permanently delete the original and any copy of this E-mail and any printout.
1
0
Hello,
One of my customers has workers in China. There outlook web
access is blocked by the China Firewall. I was just wondering if anyone had
this issue ? I have not tried any work arounds as of yet just gathering info
Thanks in advance
Jim Gonzalez
5
5
http://www.extremetech.com/extreme/122989-1-5-billion-the-cost-of-cutting-l…
$1.5 billion: The cost of cutting London-Tokyo latency by 60ms
By Sebastian Anthony on March 20, 2012 at 1:04 pm
Arctic Link submarine cable
Starting this summer, a convoy of ice breakers and specially-adapted polar
ice-rated cable laying ships will begin to lay the first ever trans-Arctic
Ocean submarine fiber optic cables. Two of these cables, called Artic Fibre
and Arctic Link, will cross the Northwest Passage which runs through the
Canadian Arctic Archipelago. A third cable, the Russian Optical Trans-Arctic
Submarine Cable System (ROTACS), will skirt the north coast of Scandinavia
and Russia. All three cables will connect the United Kingdom to Japan, with a
smattering of branches that will provide high-speed internet access to a
handful of Arctic Circle communities. The completed cables are estimated to
cost between $600 million and $1.5 billion each.
All three cables are being laid for the same reasons: Redundancy and speed.
As it stands, it takes roughly 230 milliseconds for a packet to go from
London to Tokyo; the new cables will reduce this by 30% to 170ms. This
speed-up will be gained by virtue of a much shorter run: Currently, packets
from the UK to Japan either have to traverse Europe, the Middle East, and the
Indian Ocean, or the Atlantic, US, and Pacific, both routes racking up around
15,000 miles in the process. It’s only 10,000 miles (16,000km) across the
Arctic Ocean, and you don’t have to mess around with any land crossings,
either.
Russian Optical Trans-Arctic Submarine Cable System (ROTACS) between UK and
JapanThe massive drop in latency is expected to supercharge algorithmic stock
market trading, where a difference of a few milliseconds can gain (or lose)
millions of dollars. It is for this reason that a new cable is currently
being laid between the UK and US — it will cost $300 million and shave “just”
six milliseconds off the fastest link currently available. The lower latency
will also be a boon to other technologies that hinge heavily on the internet,
such as telemedicine (and teleconferencing) and education. Telephone calls
and live news coverage would also enjoy the significantly lower latency. Each
of the fiber optic cables will have a capacity in the terabits-per-second
range, which will probably come in handy too.
Beyond the stock markets, though, the main advantage of the three new cables
is added redundancy. Currently, almost every cable that lands in Asia goes
through a choke point in the Middle East or the Luzon Strait between the
Philippine and South China seas. If a ship were to drag an anchor across the
wrong patch of seabed, billions of people could wake up to find themselves
either completely disconnected from the internet or surfing with dial-up-like
speeds. The three new cables will all come down from the north of Japan,
through the relatively-empty Bering Sea — and the Arctic Ocean, where each of
the cables will run for more than 5,000 miles, is one of the least-trafficked
parts of the world. That said, the cables will still have to be laid hundreds
of meters below the surface to avoid the tails of roving icebergs.
The ROTACS cable path
Each cable will be laid by a pair of ships: an ice breaker that leads the
way, and a cable ship. Until now it has been impossible to lay cables in the
Arctic Ocean, but the retreat of the Arctic sea ice means that the Northwest
Passage is now generally ice-free from August to October; a big enough window
that cable can be laid fairly safely. Existing cable ships (and there aren’t
many of them) are all outfitted for balmier climes, so all three cables will
require the use of a polar ice-rated ship that has been retrofitted to carry
cable-laying gear.
Read more about the secret world of submarine cables.
For more information on the Russian Optical Trans-Arctic Submarine Cable
System (ROTACS), check out the Polarnet Project (machine translated).
The Arctic Fibre and Arctic Link websites have information on the North
American cables.
[Image credit: New Scientist]
23
35
Curious that so many routers owned by the same US company would all be
timing out on havanatimes.org with the server located in a former
eastern bloc nation. Oh well, it's back now. Cold war over.
On Sat, Mar 24, 2012 at 5:36 PM, Jeff Tantsura
<jeff.tantsura(a)ericsson.com> wrote:
> 81.169.144 belongs to a German company based in Berlin :)
>
> Regards,
> Jeff
>
> On Mar 24, 2012, at 13:39, "Randy Bush" <randy(a)psg.com> wrote:
>
>> 81.169.145.156
>
1
0
Reports from around the country are that traceroutes through sbcglobal
(in Austin, Houston and NJ) are failing with timeout to
havanatimes.org -- yet when we go in through TOR or Comcast or using
overseas services, their routing is just fine. What gives?
5
5